Television – Camera – system and detail – Optics
Reexamination Certificate
2004-06-28
2010-02-02
Ho, Tuan (Department: 2622)
Television
Camera, system and detail
Optics
C348S223100, C348S224100, C348S229100, C348S273000, C348S342000, C348S364000
Reexamination Certificate
active
07656458
ABSTRACT:
A color photographing device is equipped with a light-receiving section having a red pixel selectively receiving red light and outputting a red pixel signal and a green pixel selectively receiving green light and outputting a green pixel signal. The color photographing device is further equipped with an optical filter disposed on the side with a light-receiving surface of the light-receiving section. The optical filter substantially equalizes the signal level of the red pixel signal and the signal level of the green pixel signal when achromatic color illuminated by a solar light source in the daytime is photographed. Therefore, a white balance gain Wr at about 5000K can be lowered as compared with a conventional color photographing device. Accordingly, reduction of color noises and enhancement of gradation can be expected.
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Ho Tuan
Nikon Corporation
Oliff & Berridg,e PLC
Yoder, III Chriss S
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